Files
frontend-svelte/src/entities/Font/model/store/batchFontStore.svelte.ts
2026-04-15 12:29:16 +03:00

92 lines
2.3 KiB
TypeScript

import { fontKeys } from '$shared/api/queryKeys';
import { BaseQueryStore } from '$shared/lib/helpers/BaseQueryStore.svelte';
import {
fetchFontsByIds,
seedFontCache,
} from '../../api/proxy/proxyFonts';
import {
FontNetworkError,
FontResponseError,
} from '../../lib/errors/errors';
import type { UnifiedFont } from '../../model/types';
/**
* Internal fetcher that seeds the cache and handles error wrapping.
* Standalone function to avoid 'this' issues during construction.
*/
async function fetchAndSeed(ids: string[]): Promise<UnifiedFont[]> {
if (ids.length === 0) return [];
let response: UnifiedFont[];
try {
response = await fetchFontsByIds(ids);
} catch (cause) {
throw new FontNetworkError(cause);
}
if (!response || !Array.isArray(response)) {
throw new FontResponseError('batchResponse', response);
}
seedFontCache(response);
return response;
}
/**
* Reactive store for fetching and caching batches of fonts by ID.
* Integrates with TanStack Query via BaseQueryStore and handles
* normalized cache seeding.
*/
export class BatchFontStore extends BaseQueryStore<UnifiedFont[]> {
constructor(initialIds: string[] = []) {
super({
queryKey: fontKeys.batch(initialIds),
queryFn: () => fetchAndSeed(initialIds),
enabled: initialIds.length > 0,
retry: false,
});
}
/**
* Updates the IDs to fetch. Triggers a new query.
*
* @param ids - Array of font IDs
*/
setIds(ids: string[]): void {
this.updateOptions({
queryKey: fontKeys.batch(ids),
queryFn: () => fetchAndSeed(ids),
enabled: ids.length > 0,
retry: false,
});
}
/**
* Array of fetched fonts
*/
get fonts(): UnifiedFont[] {
return this.result.data ?? [];
}
/**
* Whether the query is currently loading
*/
get isLoading(): boolean {
return this.result.isLoading;
}
/**
* Whether the query encountered an error
*/
get isError(): boolean {
return this.result.isError;
}
/**
* The error object if the query failed
*/
get error(): Error | null {
return (this.result.error as Error) ?? null;
}
}